EP1717437B1 - Fuel injector with electromagnetic actuator - Google Patents

Fuel injector with electromagnetic actuator Download PDF

Info

Publication number
EP1717437B1
EP1717437B1 EP06113246A EP06113246A EP1717437B1 EP 1717437 B1 EP1717437 B1 EP 1717437B1 EP 06113246 A EP06113246 A EP 06113246A EP 06113246 A EP06113246 A EP 06113246A EP 1717437 B1 EP1717437 B1 EP 1717437B1
Authority
EP
European Patent Office
Prior art keywords
fuel
injector
armature
plunger
guide element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06113246A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1717437A1 (en
Inventor
Marcello Cristiani
Paolo Pasquali
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Europe SpA
Original Assignee
Magneti Marelli Powertrain SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magneti Marelli Powertrain SpA filed Critical Magneti Marelli Powertrain SpA
Priority to PL06113246T priority Critical patent/PL1717437T3/pl
Publication of EP1717437A1 publication Critical patent/EP1717437A1/en
Application granted granted Critical
Publication of EP1717437B1 publication Critical patent/EP1717437B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting

Definitions

  • the present invention relates to a fuel injector with an electromagnetic actuator.
  • An electromagnetic fuel injector comprises a cylindrical tubular body having a central feed channel which performs the function of a fuel duct and ends with an injection jet controlled by an injection valve operated by an electromagnetic actuator.
  • the injection valve is provided with a plunger, which is rigidly connected to a mobile armature of the electromagnetic actuator in order to be displaced by the action of said electromagnetic actuator between a closed position and an open position of the injection jet against the action of a spring which tends to hold the plunger in the closed position.
  • the plunger ends with a sealing head which, in the closed position, is thrust by the spring against a valve seat of the injection valve in order to prevent the fuel from escaping.
  • the sealing head is arranged within the fuel duct; consequently, in order to change over from the closed position to the open position of the injection valve, the sealing head is displaced in a direction contrary to the direction of feed of the fuel.
  • Electromagnetic fuel injectors of the above-described type are simple and economic to produce and exhibit a good cost/performance ratio.
  • such injectors do not ensure a high level of precision and of stability in directing fuel injection and such injectors are accordingly unsuitable for use in "spray-guided" engines, in which the fuel must be injected with a very high level of precision in the vicinity of the spark plug; indeed, in this kind of application, an error of less than one millimetre in the direction of the stream of fuel may result in wetting of the spark plug electrodes, so seriously compromising combustion.
  • JP3050378 discloses an injector for directly injecting fuel into a cylinder of a two-cycle engine; the injector is provided with a two-piece structured valve member in a housing for guiding freely movably a first valve member provided with a valve head at the tip along the axis by a guide member and a sheet member.
  • a cone-shaped fuel injection port expanding outward is formed at the tip of the sheet member;
  • a fuel measuring unit for giving a constant flow path cross-sectional area corresponding to difference between the cross-sectional area of a fuel path and the cross-sectional area of the valve member in the flowing direction over specified length and regulating fuel injection amount per injection is formed before the injection port by providing a neck at the foot of the valve head.
  • JP62255569 discloses a fuel injection valve; first and second stoppers serving as stoppers on a moving side are made abutment against a spacer serving as a stopper on a fixed side for keeping an operating stroke of a needle valve constant.
  • a screw serving as a regulating unit is move upwardly and downwardly while fuel is injected for thereby determining the position of a valve case with respect to a body so as to regulate the operating stroke; at the time, the urging force of a regulating spring permits the valve case to move together with the screw and the spring permits the needle valve to move together with the valve case.
  • the screw is fixed to the opening lower edge of a body by spot welding.
  • JP3043659 discloses an injector directly injecting a fuel into the cylinder of a two-cycle engine; the injector has a valve member divided into first and second valve members, and the first valve member is guided by a guide member and a sheet member and held in such a manner as to be axially movable, and a valve head is provided on its top end.
  • the second valve member is projected into the solenoid of an electromagnetic driving means, and an armature is fixed to its rear end part.
  • a return fuel passage extending from a bypass passage forming a part of an injection fuel passage extending from a fuel feed port to a fuel injection port provided on the sheet member inner end side to the fuel tank side is formed.
  • JP57146049 discloses a fuel injection valve designed to prevent the leakage of the fuel, wherein it is provided a valve body to open or close an injection nozzle from the inner side thereof in addition to a poppet valve controlling the amount of injection.
  • the object of the present invention is to provide a fuel injector with an electromagnetic actuator which does not exhibit the above-stated disadvantages and, in particular, is simple and economic to produce.
  • the present invention provides a fuel injector with an electromagnetic actuator as recited in the attached claims.
  • FIG. 1 denotes the overall fuel injector which exhibits a substantially cylindrical symmetry around a longitudinal axis 2 and is capable of being operated to inject fuel from an injection jet 3 which opens directly into an explosion chamber (not shown) of a cylinder.
  • the injector 1 comprises a monolithic support body 4, which is of a cylindrical tubular shape of variable cross-section along the longitudinal axis 2 and comprises a feed channel 5 extending over the entire length of said support body 4 in order to supply the fuel under pressure towards the injection jet 3.
  • the support body 4 accommodates an electromagnetic actuator 6 at the level of an upper portion of said support body and an injection valve 7 at the level of a lower portion of said support body; in operation, the injection valve 7 is actuated by the electromagnetic actuator 6 in order to control the flow of fuel through the injection jet 3, which is located at the level of said injection valve 7.
  • the electromagnetic actuator 6 comprises an electromagnet 8, which is accommodated in a fixed position within the support body 4 and, when energised, is capable of displacing an armature 9 of ferromagnetic material along the axis 2 from a closed position into an open position of the injection valve 7 against the action of a main spring 10 which tends to hold the armature 9 in the closed position of the injection valve 7.
  • the electromagnet 8 comprises a coil 11, which is electrically supplied by an electronic control unit (not shown) and is accommodated externally relative to the support body 4, and a magnetic armature 12, which is accommodated within the support body 4 and exhibits a central hole 13 in order to allow the fuel to flow towards the injection jet 3.
  • an abutment body 14 is located in a fixed position, which body is of a tubular cylindrical shape (optionally open along a generatrix) in order to allow the fuel to flow towards the injection jet 3 and is capable of holding the main spring 10 compressed against the armature 9.
  • the armature 9 is part of a mobile assembly, which moreover comprises a poppet or plunger 15 having an upper portion integral with the armature 9 and a lower portion which cooperates with a valve seat 16 (shown in Figure 2) of the injection valve 7 in order, in known manner, to control the flow of fuel through the injection jet 3.
  • a poppet or plunger 15 having an upper portion integral with the armature 9 and a lower portion which cooperates with a valve seat 16 (shown in Figure 2) of the injection valve 7 in order, in known manner, to control the flow of fuel through the injection jet 3.
  • the valve seat 16 is of a frustoconical shape and is defined by a sealing body 17, which is monolithic and comprises a disk-shaped plug element 18, which tightly seals the feed channel 5 of the support body 4 at the bottom and is passed through by the injection jet 3.
  • a guide element 19 rises from the plug element 18, which guide element is tubular in shape, accommodates within it the plunger 15 in order to define a lower guide for said plunger 15 and has an external diameter which is smaller than the internal diameter of the feed channel 5 of the support body 4, in such a manner as to define an external annular channel 20 through which the fuel under pressure can flow.
  • the guide element 19 has at the top a diameter equal to the internal diameter of the feed channel 5 of the support body 4; openings (typically two or four distributed symmetrically) are milled in the upper part of the guide element 19 in order to supply fuel to the annular channel 20.
  • the guide element 19 In the lower part of the guide element 19 are located four through-holes 21 (only two of which are shown in Figure 2), which open towards the valve seat 16 in order to permit fuel under pressure to flow towards said valve seat 16.
  • the through-holes 21 are preferably arranged offset relative to the longitudinal axis 2 in such a manner as not to converge towards said longitudinal axis 2 and so as to impart when in operation a swirling flow to the respective streams of fuel; alternatively, the through-holes 21 may converge towards the longitudinal axis 2.
  • the holes 21 form an angle of 90° with the longitudinal axis 2; according to another embodiment which is not shown, the holes 21 are inclined and form an angle generally of between 60° and 80° with the longitudinal axis 2.
  • the plunger 15 ends with a sealing head 22 of frustoconical shape, which is capable of resting in sealing manner against the valve seat 16, which is of a frustoconical shape and is a negative reproduction of the frustoconical shape of said sealing head 22.
  • the sealing head 22 is arranged externally relative to the guide element 19 and is thrust by the main spring 10 against said guide element 19; consequently, in order to change over from the closed position to the open position of the injection valve 7, the sealing head 22 is displaced downwards along the longitudinal axis 2, i.e. in a direction which is in accordance with the direction of feed of the fuel.
  • the sealing head 22 In the open position of the injection valve 7, the sealing head 22 is separated from the valve seat 16, so creating an opening which permits passage of the fuel of a circular, ring-shaped section and a frustoconical shape; as a result, the fuel which is injected through the injection jet 3 exhibits on exit an internally hollow conical shape having an aperture angle which is substantially identical to the aperture angle 23 of the sealing head 22 (exactly matching the aperture angle of the valve seat 16).
  • the armature 9 comprises an annular element 24 and a discoidal element 25 which closes the annular element 24 at the top and has a central through-hole 26 capable of receiving an upper portion of the plunger 15 and a plurality of peripheral through-holes 27 (only two of which are shown in Figure 1) capable of permitting fuel to flow towards the injection jet 3.
  • a central portion of the discoidal element 25 is appropriately shaped to so as to accommodate an upper end of the main spring 10 and hold it in position.
  • the plunger 15 is firmly connected with the discoidal element 25 of the armature 9 by means of an annular weld.
  • the annular element 24 of the armature 9 has an external diameter substantially identical to the internal diameter of the corresponding portion of the feed channel 5 of the support body 4; in this manner, the armature 9 can slide relative to the support body 4 along the longitudinal axis 2, but, relative to the support body 4, cannot move in any way transversely to the longitudinal axis 2. Since the plunger 15 is rigidly connected to the armature 5, it is clear that the armature 9 also performs the function of guiding the top of the plunger 15; as a consequence, the plunger 15 is guided at the top by the armature 9 and at the bottom by the guide element 19.
  • a further calibration spring 28 is also provided, which is compressed between the armature 9 and an abutment body 29 located in a fixed position within the support body 4; in particular, the calibration spring 28 has an upper end resting against a lower wall of the abutment body 29 and a lower end resting against an upper wall of the discoidal element 25 of the armature 9 on the opposite side relative to the main spring 10.
  • the calibration spring 28 exerts on the armature 9 a resilient force which is oriented in the opposite direction to the resilient force of the main spring 10; during installation of the injector 1, the position of the abutment body 29 is adjusted in such a manner as consequently to adjust the resilient force generated by the calibration spring 28 in order to calibrate the overall resilient thrust acting on the armature 9.
  • the abutment body 29 is of a circular shape with a central portion in which there is defined a seat 30 for accommodating the calibration spring 28 and a peripheral portion in which are located a plurality of through-holes 31 (only two of which are shown in Figure 3) in order to allow the fuel to flow towards the injection jet 3.
  • Each through-hole 31 is coupled to a filtration element 32, which has the function of retaining any residues or impurities present in the fuel.
  • the plunger 15 is made up of an upper part 33, which is integral with the armature 9, and a lower part 34, which supports the sealing head 22; the two parts 33 and 34 of the plunger 15 are joined to one another by means of a weld.
  • This solution makes it possible to limit machining costs, in that only the lower part 34 which supports the sealing head 22 is subjected to precision machining, while the upper part 33 is more roughly machined.
  • the armature 9 When the electromagnet 8 is energised, the armature 9 is magnetically attracted by the magnetic armature 12 against the resilient force of the main spring 10 and the armature 9, together with the plunger 15, is displaced downwards until it comes into contact with said magnetic armature 12; in this situation, the sealing head 22 of the plunger 15 is lowered relative to the valve seat 16 of the injection valve 7 and the fuel under pressure can flow through the injection jet 3.
  • the four through-holes 21 which open towards the valve seat 16 are preferably arranged offset relative to the longitudinal axis 2 in such a manner as not to converge towards said longitudinal axis 2 and so as to impart when in operation a swirling flow to the respective streams of fuel.
  • Such swirling flow of the fuel immediately upstream of the valve seat 16 makes it possible to achieve homogeneous and uniform distribution of the fuel around the entire circumference, avoiding the formation of "empty" zones, i.e. zones in which a reduced quantity of fuel is present.
  • the fuel reaches the injection jet 3 through the external annular channel 20 and subsequently through the four through-holes 21; in other words, when the sealing head 22 of the plunger 15 is raised relative to the valve seat 16, the fuel reaches the injection jet 3, wetting the entire external lateral surface of the guide element 19.
  • the guide element 19 is constantly cooled by the fuel, which is at a relatively low temperature; this cooling effect of the guide element 19 is transmitted to the entire sealing body 17 (which is monolithic) and is thus also transmitted to the plug element 18 in which the injection jet 3 is located.
  • the guide element 19 which is constantly wetted internally and externally by the fuel acts as a radiator for dissipating heat received from outside and present in the plug element 18.
  • the above-described injector 1 exhibits numerous advantages, in that it is simple and economic to produce, it enables accurate calibration of the flow rate of fuel and, above all, exhibits high levels of precision and stability in directing the fuel injection. As a consequence, the above-described injector 1 is particularly suitable for use in a "spray-guided" engine, in which the fuel must be injected with very high precision in the vicinity of the spark plug.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
EP06113246A 2005-04-29 2006-04-27 Fuel injector with electromagnetic actuator Not-in-force EP1717437B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06113246T PL1717437T3 (pl) 2005-04-29 2006-04-27 Wtryskiwacz paliwa z elektromagnetycznym członem wykonawczym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000295A ITBO20050295A1 (it) 2005-04-29 2005-04-29 Inietore di carburante con attuatore elettromagnetico

Publications (2)

Publication Number Publication Date
EP1717437A1 EP1717437A1 (en) 2006-11-02
EP1717437B1 true EP1717437B1 (en) 2008-01-09

Family

ID=35520848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06113246A Not-in-force EP1717437B1 (en) 2005-04-29 2006-04-27 Fuel injector with electromagnetic actuator

Country Status (10)

Country Link
US (1) US7546961B2 (es)
EP (1) EP1717437B1 (es)
CN (1) CN1854504A (es)
AT (1) ATE383510T1 (es)
BR (1) BRPI0601743A (es)
DE (1) DE602006000409T2 (es)
ES (1) ES2299146T3 (es)
IT (1) ITBO20050295A1 (es)
PL (1) PL1717437T3 (es)
PT (1) PT1717437E (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057425A1 (de) * 2006-05-23 2007-11-29 Robert Bosch Gmbh Vorrichtung zur Regeneration, zur Temperaturbeaufschlagung und/oder zum Thermomanagement, zugehöriges Einspritzventil und Verfahren
ATE464470T1 (de) 2007-04-30 2010-04-15 Magneti Marelli Spa KRAFTSTOFFEINSPRITZVENTIL MIT SICH NACH AUßEN ÖFFNENDEM VENTIL
US8915453B1 (en) 2007-06-01 2014-12-23 Raymond C. Sherry Expansion nozzle with continuous rotating stem
US8097128B1 (en) * 2007-06-01 2012-01-17 Sherry Raymond C Method and apparatus for purifying water
JP4453745B2 (ja) * 2007-11-20 2010-04-21 株式会社デンソー 燃料噴射弁
US8074625B2 (en) * 2008-01-07 2011-12-13 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
US8800895B2 (en) * 2008-08-27 2014-08-12 Woodward, Inc. Piloted variable area fuel injector
WO2011028224A2 (en) * 2009-08-27 2011-03-10 Mcalister Technologies, Llc Fuel injector actuator assemblies and associated methods of use and manufacture
US20110073071A1 (en) * 2009-09-30 2011-03-31 Woodward Governor Company Internally Nested Variable-Area Fuel Nozzle
US9683739B2 (en) * 2009-11-09 2017-06-20 Woodward, Inc. Variable-area fuel injector with improved circumferential spray uniformity
US8453951B2 (en) * 2010-09-22 2013-06-04 Delphi Technologies, Inc. Fuel injector
US8528519B2 (en) 2010-10-27 2013-09-10 Mcalister Technologies, Llc Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
US8616474B2 (en) * 2011-09-09 2013-12-31 Continental Automotive Systems, Inc. High flow outward opening gaseous injector for automotive applications
US9091238B2 (en) 2012-11-12 2015-07-28 Advanced Green Technologies, Llc Systems and methods for providing motion amplification and compensation by fluid displacement
US9309846B2 (en) 2012-11-12 2016-04-12 Mcalister Technologies, Llc Motion modifiers for fuel injection systems
DE102013206385A1 (de) * 2013-04-11 2014-10-16 Robert Bosch Gmbh Ventil zum Zumessen von Fluid
EP2857670B1 (en) 2013-10-04 2018-12-12 Continental Automotive GmbH Fuel injector
DE102014200756A1 (de) * 2014-01-17 2015-07-23 Robert Bosch Gmbh Gasinjektor zum Direkteinblasen von gasförmigem Kraftstoff in einen Brennraum
DE102014200757A1 (de) * 2014-01-17 2015-07-23 Robert Bosch Gmbh Gasinjektor zum Direkteinblasen von gasförmigem Kraftstoff in einen Brennraum
EP2949917B1 (en) 2014-05-27 2017-01-04 Continental Automotive GmbH Fuel injector
CN104358642A (zh) * 2014-11-07 2015-02-18 浙江恒光汽车部件有限公司 芯轴耐磨式电磁燃油泵
EP3153700A1 (en) * 2015-10-08 2017-04-12 Continental Automotive GmbH Valve assembly for an injection valve, injection valve and method for assembling an injection valve
US10006429B2 (en) * 2016-03-31 2018-06-26 GM Global Technology Operations LLC Variable-area poppet nozzle actuator
CN108457784A (zh) * 2018-01-05 2018-08-28 中国第汽车股份有限公司 一种外开式汽油直喷喷油器
US10859051B2 (en) * 2018-06-12 2020-12-08 Delphi Technologies Ip Limited Fuel injector with combined calibration tube, fuel filter, and pressure pulsation damping orifice

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501283A1 (de) * 1975-01-15 1976-07-22 Bosch Gmbh Robert Einspritzventil
JPS57146049A (en) * 1981-03-04 1982-09-09 Nissan Motor Co Ltd Fuel injection valve
JPS62255569A (ja) * 1986-04-30 1987-11-07 Nippon Denso Co Ltd 燃料噴射弁
DE3629646A1 (de) * 1986-08-30 1988-03-03 Bosch Gmbh Robert Elektromagnetisch betaetigbares kraftstoffeinspritzventil
US4844339A (en) * 1987-03-13 1989-07-04 Orbital Engine Company Proprietary Limited Fuel injection apparatus
US4783009A (en) * 1987-04-27 1988-11-08 Brunswick Corporation Calibration adjustment of electromagnetic fuel injectors
FR2615249B1 (fr) 1987-05-12 1989-08-18 Renault Injecteur pour moteur a allumage commande et injection directe
JPH0343659A (ja) 1989-07-06 1991-02-25 Aisan Ind Co Ltd 筒内燃料噴射装置
JPH0350378A (ja) * 1989-07-18 1991-03-04 Aisan Ind Co Ltd 筒内燃料噴射装置
DE4340305C2 (de) 1993-11-26 1998-02-19 Daimler Benz Ag Kraftstoffeinspritzdüse für eine Brennkraftmaschine
DE19756103A1 (de) 1997-12-17 1999-06-24 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19849956A1 (de) 1998-09-28 2000-04-20 Case Germany Gmbh Einspritzdüse
DE19849210A1 (de) 1998-10-26 2000-04-27 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19853091A1 (de) 1998-11-18 2000-05-25 Bosch Gmbh Robert Brennstoffeinspritzventil
US6042028A (en) * 1999-02-18 2000-03-28 General Motors Corporation Direct injection fuel injector spray nozzle and method
DE60015218T2 (de) 1999-04-01 2006-02-16 Delphi Technologies, Inc., Troy Brennstoffeinspritzventil
DE19919431B4 (de) 1999-04-29 2008-10-16 Robert Bosch Gmbh Registerdüse
DE19956510A1 (de) 1999-11-25 2001-05-31 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10039077A1 (de) * 2000-08-10 2002-02-21 Bosch Gmbh Robert Brennstoffeinspritzventil
DE10049518B4 (de) * 2000-10-06 2005-11-24 Robert Bosch Gmbh Brennstoffeinspritzventil
US6431472B1 (en) * 2000-12-21 2002-08-13 Caterpillar Inc. Fuel injector nozzle with outwardly opening check valve
DE10208223A1 (de) * 2002-02-26 2003-10-30 Bosch Gmbh Robert Brennstoffeinspritzventil
US7021566B2 (en) * 2003-08-19 2006-04-04 Siemens Vdo Automotive Corporation Modular fuel injector with a deep pocket seat and method of maintaining spatial orientation
ES2279500T3 (es) * 2005-06-17 2007-08-16 Magneti Marelli Powertrain S.P.A. Inyector de carburante.

Also Published As

Publication number Publication date
EP1717437A1 (en) 2006-11-02
PL1717437T3 (pl) 2008-05-30
ATE383510T1 (de) 2008-01-15
ITBO20050295A1 (it) 2006-10-30
US7546961B2 (en) 2009-06-16
BRPI0601743A (pt) 2007-08-14
DE602006000409T2 (de) 2009-01-08
US20060255185A1 (en) 2006-11-16
ES2299146T3 (es) 2008-05-16
CN1854504A (zh) 2006-11-01
PT1717437E (pt) 2008-03-05
DE602006000409D1 (de) 2008-02-21

Similar Documents

Publication Publication Date Title
EP1717437B1 (en) Fuel injector with electromagnetic actuator
EP1734251B1 (en) Fuel injector
US5141164A (en) Fuel injector
US8496192B2 (en) Outward opening fuel injector
US7140556B2 (en) Fuel injector with injection valve provided with side feed
JP2002500308A (ja) 加圧渦流型燃料噴射器の平頭ニードル
US4494701A (en) Fuel injector
JP2001003831A (ja) 管状下部ニードルガイドを備えた燃料インジェクタ
JPH04358764A (ja) 電磁燃料インゼクタのためのオリフィスディレクタプレート
US6575385B1 (en) Fuel injection valve
CN111810333A (zh) 一种电控燃油喷射阀
KR20030007944A (ko) 연료 분사 밸브
KR20230137442A (ko) 자동차의 연소실 또는 흡입 매니폴드 속으로 가스를 주입하기 위한 인젝터
KR20020037067A (ko) 연료 분사 밸브
JP2004504531A (ja) 燃料噴射弁
US6363915B1 (en) Fuel injector valve with motion damper
US9518542B2 (en) Injection valve
US11976619B2 (en) Fuel injection valve
JP5565291B2 (ja) 燃料噴射装置
JP5494453B2 (ja) 燃料噴射装置
CN212508615U (zh) 一种电控燃油喷射阀
US20230077533A1 (en) Injection nozzle for injecting fuel under high pressure
US20230022358A1 (en) Fuel injector for injecting fuel
BRPI0601743B1 (pt) Injetor de combustível com atuador eletromagnético
JP2004510914A (ja) 燃料噴射弁

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20070430

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602006000409

Country of ref document: DE

Date of ref document: 20080221

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20080222

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2299146

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080509

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080409

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080430

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

26N No opposition filed

Effective date: 20081010

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20090430

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20090402

Year of fee payment: 4

Ref country code: PT

Payment date: 20090406

Year of fee payment: 4

Ref country code: SE

Payment date: 20090424

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080710

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080410

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20101027

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100427

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110711

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100427

REG Reference to a national code

Ref country code: PL

Ref legal event code: LAPE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100428

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190325

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190220

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602006000409

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201103